CN112903267A - Telescopic protection casing reliability test system with multidimension loading function - Google Patents
Telescopic protection casing reliability test system with multidimension loading function Download PDFInfo
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- CN112903267A CN112903267A CN202110072970.2A CN202110072970A CN112903267A CN 112903267 A CN112903267 A CN 112903267A CN 202110072970 A CN202110072970 A CN 202110072970A CN 112903267 A CN112903267 A CN 112903267A
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- 238000012360 testing method Methods 0.000 title claims abstract description 94
- 230000001681 protective effect Effects 0.000 claims abstract description 116
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000004088 simulation Methods 0.000 claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 239000002173 cutting fluid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- Spectroscopy & Molecular Physics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a telescopic protective cover reliability test system with a multidimensional loading function, which comprises: drive arrangement, simulation test part and horizon iron, drive arrangement adopts the pneumatic cylinder as the power supply, among the simulation test part: the feeding transmission device is connected between the hydraulic cylinder and the movable end of the tested piece, the electromagnetic loading device is installed below the tested piece, the sliding rail devices are arranged on two sides of the tested piece, the fixed end of the tested piece is clamped tightly by the clamping device, the sliding nozzle in the environment simulation device is slidably installed above the tested piece and connected with the feeding transmission device, and the state detection device is composed of a hydraulic sensor, an infrared temperature sensor and a humidity sensor. The invention can carry out multidimensional loading on the telescopic protective cover, simulate the actual working condition to a greater extent, monitor the functional state of the protective cover in real time and realize the comprehensive test on the function and the state of the telescopic protective cover.
Description
Technical Field
The invention belongs to the technical field of reliability testing of functional components of a numerical control machine tool, is suitable for a telescopic protective cover of the numerical control machine tool, and particularly relates to a telescopic protective cover reliability testing system with a multi-dimensional loading function.
Background
Numerical control machines are essential key devices in modern manufacturing systems, and are modern manufacturing equipment with high technological content. The quality of the numerical control machine tool is an important index for measuring the national industrial modernization degree, and influences the national manufacturing capability and comprehensive national strength. Although the machine tool industry in China starts late, the development is rapid, the technology and the market scale are remarkably increased in recent years, and the machine tool industry becomes the largest world machine tool producing and selling country. However, in the reliability aspect of numerically controlled machine tools, our country is still behind the foreign country of advanced machine tool manufacturing. Therefore, the research and development of the reliability test system and the test technology of the key functional parts of the numerical control machine are necessary work for improving the integral level of the numerical control machine in China at present.
The telescopic protective cover is an important functional component of the numerical control machine tool and is a protective device which is designed based on a safety protection concept and is used for protecting the safety of an operator and other functional components. Meanwhile, the telescopic protective cover also plays a role in separating the inner space and the outer space of the machine tool and blocking chips and cutting fluid. Whether the structure and the function of the numerical control machine tool are normal or not directly influences whether the numerical control machine tool can work normally or not.
Among the prior art, the telescopic protection casing testing device that has generally adopted sprocket and chain structure to control the telescopic protection casing and stretch out and draw back, and this structure only can realize driving the telescopic protection casing of being tested, and the device adds the cutting fluid spray assembly who establishes and is static structural design, and in the digit control machine tool in-service use, telescopic protection casing still will receive and include: along the loads in the horizontal longitudinal direction and the vertical direction of the telescopic direction, the existing test device obviously cannot realize the loading function, and in addition, the static cutting fluid spraying assembly structure cannot simulate the working environment of the telescopic protective cover in a dynamic telescopic state in the actual use process, so the working condition simulated by the existing telescopic protective cover has great limitation; in addition, current test device only can realize detecting serious faults such as backplate disjointing, weeping to the protection casing, can't carry out real-time detection and analysis to the motion state and the functional state of telescopic protection casing, is difficult to satisfy the demand to the comprehensive test of telescopic protection casing reliability at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention discloses a telescopic protective cover reliability test system with a multi-dimensional loading function, which can carry out multi-dimensional loading on a telescopic protective cover, simulate the actual working condition to a greater extent, monitor the functional state of the protective cover in real time and realize the comprehensive test on the function and the state of the telescopic protective cover. The technical scheme of the invention is as follows by combining the attached drawings of the specification:
telescopic protection casing reliability test system with multidimension loading function includes: the device comprises a driving device, a simulation test component and a ground iron;
the driving device and the simulation test component are arranged and installed on the ground flat iron;
the driving device adopts a hydraulic cylinder as a power source, and the simulation test component is arranged in a working area at one side corresponding to a push rod end of the hydraulic cylinder;
the simulation test part includes: the device comprises a feeding transfer device, an electromagnetic loading device, a sliding rail device, a clamping device, an environment simulation device and a state detection device;
one side of the execution end of the feeding transmission device is connected with the movable end of the telescopic protective cover in a magnetic force suction way, the other side of the execution end of the feeding transmission device is connected with the end part of a push rod of a hydraulic cylinder, and the feeding transmission device drives the telescopic protective cover to slide and stretch and apply horizontal longitudinal load to the telescopic protective cover under the driving of the hydraulic cylinder;
the electromagnetic loading device is arranged below the telescopic protective cover, and loads in the vertical direction are applied to the telescopic protective cover in a non-contact manner by electrifying the electromagnetic chuck;
the sliding rail device consists of two sliding rails corresponding to the two sides of the telescopic protective cover and provides support and guide for the telescopic protective cover;
the clamping device clamps the fixed end of the telescopic protective cover through flat tongs;
in the environment simulation device, a sliding spray head is slidably arranged above a telescopic protective cover, and the sliding spray head is connected with an execution end of a feeding transmission device, so that the sliding spray head and a movable end of the telescopic protective cover synchronously slide;
the state detection device includes: the device comprises a hydraulic sensor for collecting pressure of an oil way corresponding to a hydraulic cylinder, an infrared temperature sensor for collecting temperature of the telescopic protective cover and a humidity sensor for collecting humidity below the telescopic protective cover.
Further, the simulation test components are divided into two groups;
the hydraulic cylinder of the driving device is a double-head hydraulic cylinder;
two sets of simulation test parts symmetrical arrangement realizes the simultaneous test of two sets of telescopic protection casings in the push rod both sides of double-end pneumatic cylinder.
Further, the driving device includes: the hydraulic cylinder, the hydraulic cylinder base and the hydraulic cylinder base cushion plate;
the hydraulic cylinder is fixedly installed on the hydraulic cylinder base, and the hydraulic cylinder base is arranged on the hydraulic cylinder base plate and is fixedly installed on the ground flat iron together with the hydraulic cylinder base plate.
Further, the feed transfer device includes: the device comprises a sliding block, an electromagnet pair, a guide rail end seat and a guide rail end seat base plate;
the guide rail end seat is arranged on the guide rail end seat base plate and is fixedly arranged on the ground flat iron together with the guide rail end seat base plate;
the guide rail is horizontally and longitudinally arranged, one end of the guide rail is supported on the outer side wall of the driving device, and the other end of the guide rail is supported on the guide rail end seat;
the slide block is used as an execution end of the feeding transmission device and is connected to the guide rail in a sliding manner;
the top of the sliding block is provided with two mounting surfaces which are a first mounting surface and a second mounting surface respectively;
the first mounting surface is used for being connected with a sliding spray head in the environment simulation device;
the electromagnet pair is fixedly installed on the second installation surface, and the sliding block is connected with the movable end of the telescopic protective cover in a magnetic attraction mode.
Furthermore, the second mounting surface is a middle convex mounting surface consisting of two symmetrically arranged inclined surfaces;
a plurality of groups of bolt holes are respectively formed in the two inclined planes of the second mounting surface;
the electromagnet pair is matched and butted with the telescopic protective covers with different shapes and sizes by adjusting the mounting positions on the two inclined planes of the second mounting surface.
Furthermore, in the electromagnetic loading device, an electromagnetic chuck is fixedly installed at the top of the guide rail end seat.
Further, in the slide rail device, the bottom of the slide rail is fixedly arranged on a ground flat iron;
the relative position between the two slide rails is determined according to the size specification of the telescopic protective cover.
Further, the clamping device includes: clamping the workbench, the flat tongs pair and the flat tongs base plate;
the clamping workbench is fixedly arranged on the ground flat iron;
the flat-nose pliers pair consists of two groups of flat-nose pliers which are horizontally and transversely arranged, and each group of flat-nose pliers is correspondingly arranged on a flat-nose pliers base plate and is fixedly arranged on the clamping workbench together with the flat-nose pliers base plate.
Further, the environment simulation apparatus includes: the device comprises a frame, a sliding nozzle, a water cooler and a cooling pipeline;
the frame is fixedly arranged on the ground flat iron;
two guide rods are arranged at the top of the frame along the horizontal longitudinal direction;
the sliding spray head is connected to the guide rod in a sliding manner;
the sliding spray head is connected to a spray head connecting surface arranged on the other side of the top of the sliding block through a connecting rod, and the sliding spray head synchronously reciprocates linearly along with the movable end of the telescopic protective cover under the driving of the sliding block, so that dynamic spraying is realized;
and the sliding nozzle is connected with a water cooling machine through a cooling pipeline.
Further, the infrared temperature sensor includes: the device comprises an infrared temperature measuring head, a ball head, a magnetic support seat and a signal wire, wherein the infrared temperature measuring head is hinged to the top of the magnetic support seat through the ball head and is in signal connection with an external acquisition device through the signal wire;
humidity transducer includes humidity transducer body and magnetic base, and wherein, humidity transducer body fixes on magnetic base, and magnetic base passes through magnetic force and adsorbs to fix on the transmission that feeds of telescopic protection casing below.
Compared with the prior art, the invention has the beneficial effects that:
1. the system for testing the reliability of the telescopic protective cover with the multi-dimensional loading function can simultaneously carry out composite multi-dimensional loading on the tested telescopic protective cover, and on one hand, the tested telescopic protective cover is driven by the hydraulic cylinder to carry out horizontal reciprocating motion and apply horizontal and longitudinal loads to the tested telescopic protective cover; on the other hand, the electromagnetic chuck fixed above the guide rail end seat applies a load in the vertical direction to the tested telescopic protective cover in a non-contact electromagnetic suction mode. The environment state simulation of the telescopic protective cover under the composite multidimensional loading is more consistent with the actual working condition.
2. The reliability test system with the multidimensional loading function for the telescopic protective cover can carry out dynamic cooling liquid spraying on the tested telescopic protective cover in the test process, the position and the speed of the cooling liquid spraying can change in real time along with time, the real working environment of the telescopic protective cover is simulated, and the accuracy of the test result is improved; the flow of the cooling liquid is controlled by the main computer to adjust the water cooling machine in real time, so that accurate control is realized; the sliding spray head for dynamic spraying is connected with the hydraulic cylinder for driving and horizontal and longitudinal loading through the connecting component, the sliding of the spray head is synchronously realized when the hydraulic cylinder is used for driving and loading, and further the dynamic spraying of the spray head can be realized without additionally adding a power device. The detection result of the tightness of the telescopic protective cover under dynamic spraying is more real and accurate.
3. The telescopic protective cover reliability test system with the multi-dimensional loading function is provided with a more comprehensive state monitoring device, can simultaneously monitor the running resistance, the running temperature and the sealing performance of the tested telescopic protective cover in real time, and captures the fault state of the tested telescopic protective cover in real time. Wherein: the hydraulic sensor is used for monitoring the oil circuit pressure of the double-head hydraulic cylinder so as to judge whether the running resistance of the tested telescopic protective cover is normal or not; the infrared temperature sensor is used for monitoring the temperature of the tested telescopic protective cover so as to judge whether the lubricating performance of the tested telescopic protective cover is normal or not, and the non-contact monitoring is carried out; the humidity sensor is used for monitoring the humidity below the tested telescopic protective cover so as to judge whether the sealing performance of the tested telescopic protective cover is normal or not. The dynamic signals of temperature, humidity, hydraulic pressure and the like collected by each sensor are sent to a host computer through a data acquisition card, the host computer compares each signal with a corresponding threshold value in real time, and the condition that the signal exceeds the threshold value is immediately recorded and corresponding alarm is sent out.
4. The reliability test system of the telescopic protective cover with the multidimensional loading function adopts the electromagnet and the flat tongs to respectively suck and clamp the moving end and the fixed end of the tested telescopic protective cover, does not need to be fixed by bolts, and is simple and convenient to disassemble and assemble and time-saving.
5. The reliability test system of the telescopic protective cover with the multi-dimensional loading function has better general performance. Wherein: the testing device can adjust the positions of the sliding rail device and the clamping device according to the specification of the tested telescopic protective cover so as to match the telescopic protective covers with different widths, different heights and different strokes; the electromagnet for fixing the moving end of the tested telescopic protective cover is arranged on the inclined plane of the feeding device sliding block and can be assembled with any adjacent bolt hole pair on the inclined plane to adjust the transverse position and the longitudinal position so as to match the width and the height of the tested telescopic protective cover; the sliding rail device for supporting the tested telescopic protective cover is fixed on the ground flat iron through a T-shaped bolt, and the distance can be adjusted randomly according to the T-shaped groove so as to match the width of the tested telescopic protective cover; a flat-nose pliers base plate is arranged below the flat-nose pliers for fixing the fixed end of the tested telescopic protective cover, and the height of the flat-nose pliers can be adjusted through base plates with different thicknesses so as to match the height of the tested telescopic protective cover; the clamping test bed and the flat tongs on the clamping test bed can be adjusted in position through the T-shaped groove to match the length and the stroke of the tested telescopic protective cover.
6. The reliability test system for the telescopic protective cover with the multi-dimensional loading function can be driven by the double-head hydraulic cylinder, and can simultaneously perform reliability tests on two groups of tested telescopic protective covers in working areas on two sides of the hydraulic cylinder, so that the test efficiency is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a system for testing the reliability of a retractable protective cover with a multi-dimensional loading function according to the present invention;
FIG. 2 is a schematic view of a mounting structure of a tested retractable protective cover in the retractable protective cover reliability testing system according to the present invention;
FIG. 3 is a schematic structural diagram of a clamping device in the system for testing the reliability of the retractable protective cover according to the present invention;
FIG. 4 is a schematic diagram of a mounting structure of a slide block and an electromagnet pair in the reliability test system of the retractable protective cover according to the present invention;
FIG. 5 is a schematic structural diagram of an infrared temperature sensor in the reliability testing system for the retractable protective cover according to the present invention;
fig. 6 is a schematic diagram of the arrangement and structure of a slide rail in the reliability test system for the retractable protective cover according to the present invention.
In the figure:
1 a ground flat iron, 2 a double-head hydraulic cylinder, 3 a hydraulic cylinder base, 4 a hydraulic cylinder base pad plate, 5 a first slider, 6 a second slider, 7 a first electromagnet pair, 8 a second electromagnet pair, 9 a first guide rail, 10 a second guide rail, 11 a first guide rail end base, 12 a second guide rail end base, 13 a first guide rail end base pad plate, 14 a second guide rail end base pad plate, 15 a first electromagnetic chuck, 16 a second electromagnetic chuck, 17 a first slide rail, 18 a second slide rail, 19 a first clamping table, 20 a second clamping table, 21 a first flat tongs pair, 22 a second flat tongs pair, 23 a first flat tongs pad plate, 24 a second flat tongs pad plate, 25 a first frame, 26 a second frame, 27 a first slide sprayer, 28 a second slide sprayer, 29 a water-cooling machine, 30 a second cooling pipe, 31 a first cooling pipe, 32 a second hydraulic pressure sensor, 33 a first hydraulic pressure sensor, 34 a second infrared temperature sensor, 35 a first infrared temperature sensor, 36 a second humidity sensor, 37 a first humidity sensor, 38 a second hydraulic oil pipe, 39 a first hydraulic oil pipe, 40 a telescopic protective cover, 41 a movable clamp body, 42 jaw iron, 43 a fixed clamp body, 44 a screw rod, 45T-shaped bolts, 46 crank handles, 47 bolts, 48 bolt holes, 49 lug plates, 50 pin shafts, 51 sliding bearings, 52 infrared temperature measuring heads, 53 ball heads, 54 a magnetic force supporting seat and 55 signal wires.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The invention discloses a telescopic protective cover reliability test system with a multidimensional loading function, which comprises: the device comprises a driving device, a feeding transmission device, an electromagnetic loading device, a slide rail device, a clamping device, an environment simulation device, a state detection device and a ground flat iron;
the device comprises a feeding transmission device, an electromagnetic loading device, a sliding rail device, a clamping device, an environment simulation device and a state detection device, wherein the feeding transmission device, the electromagnetic loading device, the sliding rail device, the clamping device, the environment simulation device and the state detection device form a group of simulation test parts, the driving device is arranged at the middle position of a ground flat iron, working areas are respectively arranged on the ground flat iron on two sides of the driving device, the two working areas are symmetrically arranged relative to the driving device, and a group of simulation test parts are arranged at the position of each working area.
The driving device adopts the hydraulic cylinder as a driving power source, as shown in fig. 1, the hydraulic cylinder in the driving device adopts a double-head hydraulic cylinder 2, push rods on two sides of the double-head hydraulic cylinder 2 are respectively connected with a feeding transmission device in a simulation test part corresponding to one side, as shown in fig. 1, a first simulation test part is positioned on a working position on the right side of the double-head hydraulic cylinder 2, a second simulation test part is positioned on a working position on the left side of the double-head hydraulic cylinder 2, and the first simulation test part and the second simulation test part are identical in composition and connection relation.
As shown in FIG. 1, the ground flat iron 1 is a mounting base of the whole test system, and the ground flat iron 1 is horizontally arranged on the ground and is provided with a key slot and a T-shaped slot for mounting or dismounting.
As shown in fig. 1, the driving apparatus includes: the double-head hydraulic cylinder 2, the hydraulic cylinder base 3 and the hydraulic cylinder base cushion plate 4;
the hydraulic cylinder base 3 is arranged on the hydraulic cylinder base cushion plate 4, the hydraulic cylinder base 3 and the hydraulic cylinder base cushion plate 4 are fixedly arranged at the middle position of the ground flat iron 1 through bolts, the double-headed hydraulic cylinder 2 is fixedly arranged on the hydraulic cylinder base 3 through bolts, and the height adjustment of the double-headed hydraulic cylinder 2 in the vertical direction can be realized by adjusting the thickness of the hydraulic cylinder base cushion plate 4 so as to meet the test requirements of different heights; the outer side wall of the hydraulic cylinder base 3 corresponding to the feeding transfer device is provided with a pair of horizontal and transverse symmetrically arranged round blind holes which are used for being matched and installed with one end of a guide rail in the feeding transfer device; the hydraulic rods of the double-head hydraulic cylinder 2 are horizontally and longitudinally arranged, and the tail ends of the hydraulic rods at the two sides of the double-head hydraulic cylinder 2 are provided with earrings for being matched with the sliding blocks in the feeding transfer device; the chamber of the double-head hydraulic cylinder 2 on one side corresponding to the first simulation test component is connected with an external hydraulic oil source through a first hydraulic oil pipe 39, and the chamber of the double-head hydraulic cylinder 2 on one side corresponding to the second simulation test component is connected with the external hydraulic oil source through a second hydraulic oil pipe 38.
As shown in fig. 1, the first analog test part located at the right side of the driving apparatus includes: first feeding transmission device, first electromagnetism loading attachment, first slide rail device, first clamping device, first environmental simulation device and first state detection device, wherein:
as shown in fig. 1, 2 and 4, the first feeding transmission device is used for slidably contracting the movable end of the tested telescopic protection hood 40 in the first working area and applying a horizontal longitudinal load to the telescopic protection hood 40, and comprises: the first slide block 5, the first electromagnet pair 7, the first guide rail 9, the first guide rail end seat 11 and the first guide rail end seat base plate 13;
the first guide rail end seat 11 is arranged on a first guide rail end seat base plate 13, the first guide rail end seat 11 and the first guide rail end seat base plate 13 are fixedly arranged on the ground flat iron 1 through bolts, and the height of the first guide rail end seat 11 in the vertical direction can be adjusted by adjusting the thickness of the first guide rail end seat base plate 13 so as to meet the test requirements of different heights; the first guide rail end seat 11 is arranged opposite to the hydraulic cylinder base 3 in the driving device, a pair of circular through holes which are horizontally and transversely symmetrically arranged are formed in the side vertical surface of the first guide rail end seat 11 opposite to the hydraulic cylinder base 3, and the aperture of the circular through hole in the first guide rail end seat 11 is the same as that of the corresponding circular blind hole in the vertical surface of the outer side of the hydraulic cylinder base 3; the first guide rail 9 consists of two straight-line round steel rods which are horizontally and transversely symmetrically arranged, one end of the first guide rail 9 is axially fixedly supported and installed in a blind hole in the vertical surface of the outer side of the hydraulic cylinder base 3, and the other end of the first guide rail 9 is fixedly supported and installed in a round through hole in a first guide rail end seat 11;
as shown in fig. 4, a pair of slide holes symmetrically arranged along the horizontal direction is penetratingly formed below the first slider 5, slide bearings 51 are installed in the slide holes, and the first slider 5 is slidably connected to two linear round steel rods of the first guide rail 9 through the slide bearings 51 to realize horizontal longitudinal reciprocating sliding along the first guide rail 9; a pair of lug plates 49 is arranged on the side vertical surface of the first sliding block 5, the lug plates 49 are butted with lug rings at the tail ends of hydraulic rods of the double-head hydraulic cylinder 2 in the driving device and are connected through a pin shaft 50, so that the first sliding block 5 is hinged with the hydraulic rods of the double-head hydraulic cylinder 2, and the double-head hydraulic cylinder 2 drives the first sliding block 5 to horizontally and longitudinally slide along the first guide rail 9 in a reciprocating manner; the top of the first sliding block 5 is provided with two connecting areas, wherein the top connecting area close to one side of the driving device is a planar first mounting surface, two groups of mounting holes are symmetrically formed in the first mounting surface along the horizontal transverse direction, and each group of mounting holes consists of two mounting holes arranged along the horizontal transverse direction; the connecting area on the other side of the top of the first sliding block 5 is a second mounting surface consisting of two symmetrical inclined surfaces, and the second mounting surface consisting of the two symmetrical inclined surfaces is in a pointed angle shape with a convex middle part; bolt hole pairs are arranged on the two inclined surfaces of the second mounting surface, the first electromagnet pair 7 is composed of two first electromagnets, the two first electromagnets are fixed on the two inclined surfaces of the second mounting surface through bolts 47 respectively, the fixing positions of the two first electromagnets are symmetrical about the longitudinal central plane of the first sliding block, and the horizontal and vertical positions of the first electromagnets can be adjusted by adjusting the mounting positions of the two first electromagnets on the inclined surfaces, so that the telescopic protective covers with different shapes, specifications and sizes can be matched and butted; the first electromagnet pair 7 is connected with a telescopic sliding end (movable end) of the tested telescopic protective cover 40 through electromagnetic suction, so that the telescopic protective cover 40 is driven to perform telescopic test through the first sliding block, and horizontal and longitudinal loads are applied to the telescopic protective cover 40; in addition, four groups of bolt hole pairs 48 are arranged on two symmetrical inclined planes at the top of the first sliding block 5, and according to actual conditions, the first electromagnet pairs 7 are arranged at different bolt hole pairs on the inclined plane at the top of the first sliding block 5, so that the test requirements of the telescopic protective cover 40 with different horizontal widths or vertical heights can be met.
As shown in fig. 1, the first electromagnetic loading device is used for applying a load in a vertical direction to the tested telescopic protection cover 40 in the first working area, and a first electromagnetic chuck 15 is adopted; the first electromagnetic chuck 15 is fixedly installed at the middle position of the top of the first guide rail end seat 11 of the first feeding transmission device through a bolt, and after the first electromagnetic chuck 15 is electrified, a vertical electromagnetic force load is applied to the tested telescopic protective cover 40 above the first electromagnetic chuck in a non-contact manner.
As shown in fig. 1, 2 and 6, the first slide rail device is used for supporting and guiding the tested telescopic protection hood 40 in the first working area, and is composed of two first slide rails 17, the first slide rails 17 are metal half slide rails, and the two first slide rails 17 are symmetrically arranged on both sides of the tested telescopic protection hood 40 in the telescopic direction; the bottom of the first slide rail 17 is fixedly installed on the ground flat iron 1 through bolts, two sides of the tested telescopic protection cover 40 are supported and guided through the two first slide rails 17, and the telescopic protection cover 40 is driven by the driving device to linearly slide and stretch along the first slide rails 17 under the driving of the first slide block 5; in addition, the distance between the two first slide rails 17 and other relative positions are determined according to the dimension specification of the telescopic protection cover 40 to be tested, so as to meet the test requirements of the telescopic protection covers 40 with different specification sizes.
As shown in fig. 1, 2 and 3, the first clamping device is used for clamping and fixing the fixed end of the tested telescopic protection cover 40 in the first working area, and comprises: a first clamping table 19, a first flat-nose pliers pair 21 and a first flat-nose pliers backing plate 23;
the first clamping workbench 19 is fixedly arranged on the ground flat iron 1 through bolts, and a T-shaped groove for mounting the first flat tongs pair 21 and the first flat tongs backing plate 23 is formed in the first clamping workbench 19;
as shown in fig. 3, the first flat-nose pliers pair 21 is composed of two sets of first flat-nose pliers, and the first flat-nose pliers include: a movable inlay 41, a jaw iron 42, a fixed inlay 43, a screw 44, a T-shaped bolt 45 and a crank 46; wherein: the fixed inlay 43 is arranged on the corresponding first flat tongs backing plate 23, both sides of the fixed inlay 43 and the first flat tongs backing plate 23 are fixedly arranged on the first clamping workbench 19 through T-shaped bolts 45, and the height adjustment of the fixed inlay 43 in the vertical direction can be realized by adjusting the thickness of the first flat tongs backing plate 23 so as to meet the test requirements of different heights; the screw 44 penetrates through the two horizontal and longitudinal ends of the fixed inlay 43, the movable inlay 41 is fixedly connected to the screw 44 along the axial direction, the screw 44 is in threaded connection with the fixed inlay 43, the crank 46 is fixed at the tail end of the screw 44, and the jaw iron 42 is arranged at the jaw position of the movable inlay 41 and the fixed inlay 43; the crank 46 is rotated manually to drive the screw 44 to rotate, the screw 44 is controlled to move linearly relative to the fixed inlay 43, and then the screw 44 drives the movable inlay 41 to move linearly relative to the fixed inlay 43, so that the jaw distance between the movable inlay 41 and the fixed inlay 43 is adjusted, and the fixed end of the tested telescopic protective cover 40 is clamped and fixed.
As shown in fig. 1, the first environment simulation apparatus is used for simulating a real-time state of the retractable shield 40 in the first working area during actual use, and includes: a first frame 25, a first sliding nozzle 27, a water cooler 29 and a first cooling pipeline 31;
the first frame 25 is supported and arranged on a working area corresponding to the first simulation test component, and the first frame 25 is fixedly arranged on the ground flat iron 1 through bolts; two guide rods are arranged at the top of the first frame 25 along the horizontal longitudinal direction; the first sliding nozzle 27 is connected to the guide rod on the top of the first frame 25 in a sliding manner; one side of the first sliding nozzle 27 is connected with the top plane area of the first sliding block 5 through a connecting rod; the water inlet of the first sliding nozzle 27 is connected with the water outlet of a water cooling machine 29 through a first cooling pipeline 31, and the water cooling machine 29 is placed on the ground near the ground flat iron 1;
the first sliding nozzle 27 is driven by the first sliding block 5 to synchronously reciprocate linearly along with the movable end of the telescopic protective cover 40 to be tested, so that the dynamic spraying of the first sliding nozzle 27 is realized without additionally adding a power device.
As shown in fig. 1, the first status detection device is used for monitoring the status of the retractable protective cover 40 in the first working area in real time during the test process under the simulated environment, and includes: a first hydraulic pressure sensor 33, a first infrared temperature sensor 35, and a first humidity sensor 37;
the first hydraulic sensor 33 is installed at the joint of the oil port of the double-head hydraulic cylinder 2 on the side corresponding to the first simulation test component and the first hydraulic oil pipe 39, so that the real-time oil circuit pressure on the side corresponding to the double-head hydraulic cylinder 2 is monitored through the first hydraulic sensor 33, and whether the running resistance of the tested telescopic protective cover 40 is normal or not is judged;
as shown in fig. 5, the first infrared temperature sensor 35 includes an infrared temperature measuring head 52, a ball 53, a magnetic support 54 and a signal line 55; the infrared temperature measuring head 52 is hinged to the top of the magnetic supporting seat 54 through a ball head 53, so that multi-angle adjustment of the infrared temperature measuring head 52 is realized; the infrared temperature measuring head 52 is in signal connection with an external acquisition device through a signal wire 55 to realize acquisition signal output; the magnetic support base 54 is adsorbed on the side wall of one side corresponding to the hydraulic cylinder base 3 through magnetic force, so that the infrared temperature measuring head 52 is relatively fixed on the hydraulic cylinder base 3, the optical axis of the infrared temperature measuring head 52 is aligned with the movable end of the tested telescopic protection cover 40 on the same side, and the real-time temperature of the corresponding telescopic protection cover 40 is monitored through the first infrared temperature sensor 35 so as to judge whether the lubricating performance of the tested telescopic protection cover 40 is normal or not;
As shown in fig. 1, the second analog test part positioned at the left side of the driving apparatus includes: second feeding transmission device, second electromagnetism loading attachment, second slide rail device, second clamping device, second environment analogue means and second state detection device, wherein:
as shown in fig. 1, 2 and 4, the second feeding transmission device is used for slidably contracting the movable end of the tested telescopic protection hood 40 in the second working area and applying a horizontal longitudinal load to the telescopic protection hood 40, and comprises: the structure, connection relationship and corresponding functional function of each component of the second feeding transmission device are the same as those of the first feeding transmission device, and the second slider 6, the second electromagnet pair 8, the second guide rail 10, the second guide rail end seat 12 and the second guide rail end seat base plate 14 are not described again.
As shown in fig. 1, the second electromagnetic loading device is used for applying a load in a vertical direction to the tested telescopic protection cover 40 in the second working area, and a second electromagnetic chuck 16 is adopted; the structure, connection relationship and corresponding functional function of the second electromagnetic chuck 16 are the same as those of the first electromagnetic chuck 15 in the second electromagnetic loading device, and are not described herein again.
As shown in fig. 1, fig. 2 and fig. 6, the second slide rail device is used for supporting and guiding the tested retractable protective cover 40 in the second working area, and is composed of two second slide rails 18, and the structure, connection relationship and corresponding functional function of each component of the second slide rail device are the same as those of the first slide rail device, and are not repeated herein;
as shown in fig. 1, the second clamping device is used for clamping and fixing the fixed end of the tested telescopic protection cover 40 in the second working area, and comprises: the structure, the connection relation and the corresponding functional function of each component of the second clamping device are the same as those of the first clamping device, and the description is omitted here;
as shown in fig. 1, the second environment simulation apparatus is used for simulating a real-time state of the retractable protection cover 40 in the second working area during actual use, and includes: the structure, the connection relationship and the corresponding functional function of each component of the second environment simulation device are the same as those of the first environment simulation device, and the details are not repeated here; in addition, the second cooling line 30 of the second environment simulator and the first cooling line 31 of the first environment simulator are connected together to one water cooler 29.
As shown in fig. 1, the second state detection device is used for monitoring the state of the retractable protective cover 40 in the second working area in real time during the test process under the simulated environment, and includes: the structure, connection relationship and corresponding functional functions of the components of the second hydraulic sensor 32, the second infrared temperature sensor 34 and the second humidity sensor 36 are the same as those of the first state detection device, and are not described again here.
In summary, the telescopic protection cover reliability test system with the multidimensional loading function adopts the double-head hydraulic cylinder 2 to realize synchronous test on the telescopic protection covers 40 in the two working areas at the left and right sides, so that the test efficiency is greatly improved. In addition, the driving device can also adopt a single-cylinder hydraulic cylinder as a driving power source, a working area is correspondingly arranged on one side of a push rod of the single-cylinder hydraulic cylinder, a group of simulation test parts are arranged on the working area, and the simulation test parts and the first simulation test parts have the same structure, connection relation and corresponding functional functions.
No matter a single-cylinder hydraulic cylinder or a double-head hydraulic cylinder is adopted as a driving power source of the driving device, the working process of the simulation test part in each working area is the same, so that the working process of the telescopic protection cover reliability test system with the multidimensional loading function is explained by taking the first simulation test part as an example as follows:
fixing a first feeding transmission device at the midpoint of the ground flat iron 1 through a bolt;
determining the distance between the first slide rail devices according to the width of the tested telescopic protective cover 40, fixing the bottom of the first slide rail 17 on the ground flat iron 1 through a T-shaped bolt, and placing the tested telescopic protective cover 40 on the first slide rail 17;
the position of the first clamping worktable 19 is adjusted according to the approximate stroke of the tested telescopic protection cover 40 and is fixed on the ground flat iron 1 through a T-shaped bolt; finely adjusting the position of the first flat jaw pair 21 according to the height and the stroke of the tested telescopic protective cover 40, and fixing the first flat jaw pair on the first clamping workbench 19 through a T-shaped bolt; wherein, the height of the first flat-nose pliers pair 21 is adjusted by the first flat-nose pliers backing plate 23 with different thicknesses, and the positions in other directions are adjusted by the T-shaped groove; after the position of the first pair of flat tongs 21 is adjusted, the end plate at the fixed end of the tested telescopic protection cover 40 is placed into the jaw of the first pair of flat tongs 21, and the crank 46 is manually rotated to push the movable tongs 41 to clamp the fixed end of the tested telescopic protection cover 40;
pulling the movable end of the tested telescopic protective cover 40 to a position close to the maximum stroke, selecting a proper adjacent bolt hole for fixing a first electromagnet pair 7 on the first sliding block 5 according to the position of the movable end plate of the tested telescopic protective cover 40, and electrifying the first electromagnet pair 7 to tightly suck the movable end plate of the telescopic protective cover 40;
moving the first sliding nozzle 27 to above the first sliding block 5 along the top guide rod of the first frame 25, and fixedly connecting the first sliding nozzle 27 with the first sliding block 5 through a bolt;
installing a first hydraulic sensor 33 at the joint of the oil port of the double-head hydraulic cylinder 2 and a hydraulic oil pipe 39, and connecting a signal line of the first hydraulic sensor 33 with a data acquisition card; the first hydraulic oil pipe 39 is connected to a servo hydraulic oil pump;
adsorbing a first infrared temperature sensor 35 on the hydraulic cylinder base 3 through a magnetic support base 54, rotating a first infrared temperature measuring head 52 to enable an optical axis to be aligned with the moving end of the tested telescopic protective cover 40, and connecting a signal line of the first infrared temperature sensor 35 with a data acquisition card;
adsorbing a first humidity sensor 37 on the first guide rail end seat 11 through a magnetic base, and connecting a signal line of the first humidity sensor 37 with a data acquisition card;
determining the flow parameter of the first sliding nozzle 27 according to the requirements of actual test conditions, and inputting the parameter into a host computer; starting the water cooling machine 29, and starting dynamic spraying of the water cooling machine 29 according to the instruction of the main computer;
determining parameters such as the loading speed and acceleration change of the double-head hydraulic cylinder 2 according to the requirements of actual test conditions, and inputting the parameters into a main computer; starting the servo hydraulic oil pump, and starting dynamic loading by the double-head hydraulic cylinder 2 according to the instruction of the main computer;
the data acquisition card sends dynamic signals such as temperature, humidity, hydraulic pressure and the like acquired by each sensor to the host computer, the host computer compares each signal with a corresponding threshold value in real time, and the condition that the signal exceeds the threshold value is immediately recorded and corresponding alarm is sent out.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. Telescopic protection casing reliability test system with multidimension loading function, its characterized in that:
the method comprises the following steps: the device comprises a driving device, a simulation test component and a ground iron;
the driving device and the simulation test component are arranged and installed on the ground flat iron;
the driving device adopts a hydraulic cylinder as a power source, and the simulation test component is arranged in a working area at one side corresponding to a push rod end of the hydraulic cylinder;
the simulation test part includes: the device comprises a feeding transfer device, an electromagnetic loading device, a sliding rail device, a clamping device, an environment simulation device and a state detection device;
one side of the execution end of the feeding transmission device is connected with the movable end of the telescopic protective cover in a magnetic force suction way, the other side of the execution end of the feeding transmission device is connected with the end part of a push rod of a hydraulic cylinder, and the feeding transmission device drives the telescopic protective cover to slide and stretch and apply horizontal longitudinal load to the telescopic protective cover under the driving of the hydraulic cylinder;
the electromagnetic loading device is arranged below the telescopic protective cover, and loads in the vertical direction are applied to the telescopic protective cover in a non-contact manner by electrifying the electromagnetic chuck;
the sliding rail device consists of two sliding rails corresponding to the two sides of the telescopic protective cover and provides support and guide for the telescopic protective cover;
the clamping device clamps the fixed end of the telescopic protective cover through flat tongs;
in the environment simulation device, a sliding spray head is slidably arranged above a telescopic protective cover, and the sliding spray head is connected with an execution end of a feeding transmission device, so that the sliding spray head and a movable end of the telescopic protective cover synchronously slide;
the state detection device includes: the device comprises a hydraulic sensor for collecting pressure of an oil way corresponding to a hydraulic cylinder, an infrared temperature sensor for collecting temperature of the telescopic protective cover and a humidity sensor for collecting humidity below the telescopic protective cover.
2. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
the simulation test components are divided into two groups;
the hydraulic cylinder of the driving device is a double-head hydraulic cylinder;
two sets of simulation test parts symmetrical arrangement realizes the simultaneous test of two sets of telescopic protection casings in the push rod both sides of double-end pneumatic cylinder.
3. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
the driving device includes: the hydraulic cylinder, the hydraulic cylinder base and the hydraulic cylinder base cushion plate;
the hydraulic cylinder is fixedly installed on the hydraulic cylinder base, and the hydraulic cylinder base is arranged on the hydraulic cylinder base plate and is fixedly installed on the ground flat iron together with the hydraulic cylinder base plate.
4. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
the feed transfer device includes: the device comprises a sliding block, an electromagnet pair, a guide rail end seat and a guide rail end seat base plate;
the guide rail end seat is arranged on the guide rail end seat base plate and is fixedly arranged on the ground flat iron together with the guide rail end seat base plate;
the guide rail is horizontally and longitudinally arranged, one end of the guide rail is supported on the outer side wall of the driving device, and the other end of the guide rail is supported on the guide rail end seat;
the slide block is used as an execution end of the feeding transmission device and is connected to the guide rail in a sliding manner;
the top of the sliding block is provided with two mounting surfaces which are a first mounting surface and a second mounting surface respectively;
the first mounting surface is used for being connected with a sliding spray head in the environment simulation device;
the electromagnet pair is fixedly installed on the second installation surface, and the sliding block is connected with the movable end of the telescopic protective cover in a magnetic attraction mode.
5. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 4, wherein:
the second mounting surface is a mounting surface with a middle bulge and composed of two inclined surfaces which are symmetrically arranged;
a plurality of groups of bolt holes are respectively formed in the two inclined planes of the second mounting surface;
the electromagnet pair is matched and butted with the telescopic protective covers with different shapes and sizes by adjusting the mounting positions on the two inclined planes of the second mounting surface.
6. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
in the electromagnetic loading device, an electromagnetic chuck is fixedly arranged at the top of the guide rail end seat.
7. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
in the slide rail device, the bottom of a slide rail is fixedly arranged on a ground flat iron;
the relative position between the two slide rails is determined according to the size specification of the telescopic protective cover.
8. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
the clamping device includes: clamping the workbench, the flat tongs pair and the flat tongs base plate;
the clamping workbench is fixedly arranged on the ground flat iron;
the flat-nose pliers pair consists of two groups of flat-nose pliers which are horizontally and transversely arranged, and each group of flat-nose pliers is correspondingly arranged on a flat-nose pliers base plate and is fixedly arranged on the clamping workbench together with the flat-nose pliers base plate.
9. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
the environment simulation apparatus includes: the device comprises a frame, a sliding nozzle, a water cooler and a cooling pipeline;
the frame is fixedly arranged on the ground flat iron;
two guide rods are arranged at the top of the frame along the horizontal longitudinal direction;
the sliding spray head is connected to the guide rod in a sliding manner;
the sliding spray head is connected to a spray head connecting surface arranged on the other side of the top of the sliding block through a connecting rod, and the sliding spray head synchronously reciprocates linearly along with the movable end of the telescopic protective cover under the driving of the sliding block, so that dynamic spraying is realized;
and the sliding nozzle is connected with a water cooling machine through a cooling pipeline.
10. The system for testing the reliability of a retractable protective cover with a multi-dimensional loading function as claimed in claim 1, wherein:
the infrared temperature sensor includes: the device comprises an infrared temperature measuring head, a ball head, a magnetic support seat and a signal wire, wherein the infrared temperature measuring head is hinged to the top of the magnetic support seat through the ball head and is in signal connection with an external acquisition device through the signal wire;
humidity transducer includes humidity transducer body and magnetic base, and wherein, humidity transducer body fixes on magnetic base, and magnetic base passes through magnetic force and adsorbs to fix on the transmission that feeds of telescopic protection casing below.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110072970.2A CN112903267B (en) | 2021-01-20 | 2021-01-20 | Telescopic protection casing reliability test system with multidimension loading function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110072970.2A CN112903267B (en) | 2021-01-20 | 2021-01-20 | Telescopic protection casing reliability test system with multidimension loading function |
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